EP0810913B1
Expired / Lapsed
EP
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Laser processing method
Assignee: Bootsman Holding BV
•
Filing: 1996-02-21
•
Granted: 2001-05-16
•
Expires: 2016-02-21
Abstract
No abstract record available.
Inventors
- 👤 Gerrit Bootsman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:37
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/083; B23K26/0853
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
Method for laser beam processing of a work piece, the
work piece (4) is temporarily mounted in a clamping element
(5) which can be moved with respect to a laser beam source
(1), and wherein the laser beam (2) is scanning a sub area (6)
of the work piece in X- and Y-direction, the scanning in one
of said directions is provided by deflection of said laser
beam, while by movement of the clamping element, controlled by
the processing unit, the work piece is moved with respect to
the laser beam source such that the laser beam can scan a
subsequent sub area of the work piece, characterised in that the scanning in both said directions is provided by deflection
of the beam by one or more mirror elements (3, 9) controlled
by a processing unit, that by said movement of the clamping
element the workpiece is moved with respect to the moveable
mirror elements too, and that the movement of the clamping
element and the scanning action of the laser beam,
respectively, takes place in an alternating manner.
Claim 2
Dependent Claim
23 words
Method according to claim 1, the deflection of the laser
beam by the mirror elements is by translating or tilting the
mirror elements.
Claim 3
Dependent Claim
145 words
Method according to claims 1 or 2, wherein the clamping
element has driving elements (22, 23) that can provide a hub
in two perpendicular directions of at least about 40 cm., and
the position of one or more calibration points on the clamping
element and/or the work piece is monitored by a wireless,
monitoring system (29), said monitoring system compares said
measured position with a predetermined calibration position
and gives a command at exceeding a difference threshold value
to said control system to adapt the functioning of one or both
said driving elements of said clamping element to the
calibration position, and at transfer from the one to the
subsequent sub-area the calibration position of said one or
more calibration positions is adjusted such that adjacent subareas
are coupled within the accuracy of the laser beam
control merely by actuation of the controlled mirror elements.
Claim 4
Independent Claim
255 words
An apparatus for laser beam processing of a work piece (4), said
apparatus comprising: A) a movable clamping elements (5) having a first side and an
opposite second side and being adapted for temporarily mounting
a work piece (4) thereon; B) one or more mirror elements (3,32,33) supported in a fixture (31) facing
said first side of said clamping element; C) a laser beam source (1,30) for generating a laser beam (2) incident
on said mirror elements; D) means for moving said clamping element in mutual perpendicular
first and second directions parallel to a movement
plane and with respect to said mirror elements and said laser
beam source; E) a processing unit controllably connected to said clamping
element and said mirror elements for controlling the position
of said clamping element and the action of said mirror elements
for successively laser beam processing at least two sub
area's (6) of said working piece by moving said laser beam from
the one sub area to the subsequent sub area by said movement
of said clamping element and by successively scanning both
said sub areas with said laser beam under control of said mirror
elements, characterised in that F) said mirror elements deflecting said incident laser beam
along directions for scanning a work piece mounted on said
clamping element; and G) said means for moving said clamping element having driving
elements (24) with a stroke of at least 40 centimeters, the
stroke of which is used to move said clamping element in the
respective first or second direction.
References Cited (Backward Citations)
No citation records indexed.
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